Substituted 3-alkyl-6-phenyl-1,2,4-triazolo(4,3-a)pyridines, processes for their preparation and pharmaceutical compositions containing them.

摘要

There are provided novel 3-alkyl-6-(substituted-phenyl)-1,2,4-triazolo[4,3-a]pyridines useful as anxiolytic agents, processes for their preparation and pharmaceutical compositions containing them. The compounds have the formula: …… wherein R1 is hydrogen, alkyl (C1-C4), alkoxy (C1-C4), fluoro, chloro, bromo, trifluoromethyl, cyano, carboxy, alkoxycarbonyl (C2-C5), carboxamido, nitro, amino, acylamino (C1-C4), monoalkylamino (C1-C4) or dialkylamino wherein each alkyl group has up to 4 carbon atoms and R2 is alkyl (C1-C3); or a pharmacologically acceptable acid-addition salt thereof.